In order to provide a sheath for introducer that is capable of preventing a distal section from being curled even when the wall thickness thereof is reduced, a sheath (20) for introducer is formed from a sheath tube (21) that has a hollow section (21a) into which an elongated body can be inserted, and includes a sheath distal section (50) and a sheath main body section (60). In the sheath (20) for an introducer, the sheath distal section (50) is formed to be harder than the sheath main body section (60).
